Re: USB HP Scanjet 5200C kills my USB ports

From: Daniel O'Connor <doconnor_at_gsoft.com.au>
Date: Wed, 16 Jun 2004 15:10:14 +0930
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On Wed, 16 Jun 2004 14:16, Daniel O'Connor wrote:
> When I try and plug my scanner into to my laptop, it works, but once I
> unplug it, the USB port is no longer useful - it detects nothing when a
> device (I've tried the scanner and a trackball) is plugged in.
>
> uscanner0: Hewlett-Packard HP ScanJet 5200C, rev 1.00/1.00, addr 2
> uscanner0: at uhub1 port 1 (addr 2) disconnected
> uscanner0: detached
>
> Note that this happens even if uscanner isn't loaded (and the scanner turns
> up as ugen)
>
> Is there any debugging I can enable to help? :)

Guh, let me append some useful information first..

The machine is a Dell Inspiron 8600 running -current as of June 14th or so.

dmesg info relating to USB ->
uhci0: <Intel 82801DB (ICH4) USB controller USB-A> port 0xbf80-0xbf9f irq 11 at device 29.0 on pci0
uhci0: [GIANT-LOCKED]
usb0: <Intel 82801DB (ICH4) USB controller USB-A> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: <Intel 82801DB (ICH4) USB controller USB-B> port 0xbf40-0xbf5f irq 11 at device 29.1 on pci0
uhci1: [GIANT-LOCKED]
usb1: <Intel 82801DB (ICH4) USB controller USB-B> on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
ums0: Logitech USB-PS/2 Trackball, rev 1.00/2.10, addr 2, iclass 3/1
ums0: 3 buttons and Z dir.
uhci2: <Intel 82801DB (ICH4) USB controller USB-C> port 0xbf20-0xbf3f irq 11 at device 29.2 on pci0
uhci2: [GIANT-LOCKED]
usb2: <Intel 82801DB (ICH4) USB controller USB-C> on uhci2
usb2: USB revision 1.0
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
ehci0: <EHCI (generic) USB 2.0 controller> mem 0xf4fffc00-0xf4ffffff irq 11 at device 29.7 on pci0
ehci0: [GIANT-LOCKED]
ehci_pci_attach: companion usb0
ehci_pci_attach: companion usb1
ehci_pci_attach: companion usb2
usb3: EHCI version 1.0
usb3: companion controllers, 2 ports each: usb0 usb1 usb2
usb3: <EHCI (generic) USB 2.0 controller> on ehci0
usb3: USB revision 2.0
uhub3: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub3: 6 ports with 6 removable, self powered

The problem does not occur on a 4.8-STABLE box with a VIA controller (not
sure how valid that comparison is :)

- -- 
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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Received on Wed Jun 16 2004 - 03:40:43 UTC

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